Yanmar 3JH4E - Page 5

Precautions ......................................................... 53
The Importance of Periodic Maintenance ............. 53
Performing Periodic Maintenance ...................... 53
The Importance of Daily Checks ........................ 53
Keep a Log of Engine Hours and Daily Checks ..... 53
Yanmar Replacement Parts .............................. 53
Tools Required .............................................. 53
Ask Your Authorized Yanmar Marine Dealer or
Distributor For Help ........................................ 53
Tightening Fasteners ...................................... 54
EPA Maintenance Requirements .............................. 55
EPA Requirements for USA and Other Applicable
Countries ..................................................... 55
EPA Requirements ......................................... 55
Conditions to Ensure Compliance with EPA
Emission Standards ........................................ 55
Inspection and Maintenance ............................. 56
Periodic Maintenance Schedule ............................... 57
Inspection and Maintenance of EPA Emission-
Related Parts ................................................ 60
Periodic Maintenance Procedures ............................ 61
After Initial 50 Hours of Operation ...................... 61
Every 50 Hours of Operation ............................. 65
Every 250 Hours of Operation ........................... 67
Every 500 Hours of Operation ........................... 73
Every 1000 Hours of Operation ......................... 74
Troubleshooting ....................................................... 77
Troubleshooting After Starting ................................. 77
Troubleshooting Chart ........................................... 79
Troubleshooting Information .................................... 82
Long-Term Storage ................................................... 83
Prepare Engine for Long-Term Storage ...................... 83
Drain Seawater Cooling System ............................... 84
Specifications .......................................................... 87
Principal Engine Specifications ................................ 87
3JH4E Engine Specifications ............................ 87
3JH4E Marine Gear Specifications ..................... 89
4JH4AE Engine Specifications .......................... 90
4JH4AE Marine Gear or Sail Drive
Specifications ................................................ 94
4JH4-TE Engine Specifications ......................... 96
4JH4-HTE Engine Specifications ....................... 98
TABLE OF CONTENTS
JH4 Series Operation Manual v